Foster Bay Recreation Area Weather Forecast

    • 59
    • 79

    Rain Showers Likely

    • 56
    • 67

    Rain Showers

    • 53
    • 63

    Rain Showers Likely

    • 51
    • 67

    Chance Rain Showers

    • 53
    • 74

    Partly Sunny

    • 54
    • 77

    Partly Sunny

Today 16 Sep Stanley

Partly cloudy. A slight chance of Thunderstorms early. A slight chance of Thunderstorms this afternoon. Highs in the upper 70s. West Winds 10 to 15 Mph, becoming northwest 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 20 percent.

Tonight 16 Sep Stanley

Mostly cloudy with a 50 percent chance of Thunderstorms. Lows in the upper 50s. Northwest Winds 5 to 10 Mph.

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Foster Bay Recreation Area Temperature Statistics

September Temperature

Pierre, Pierre Regional Airport (44.7 miles)

  • Lowest 6 September, 2025

    39 °F

  • Average September

    66.1 °F

  • Highest 12 September, 2025

    90 °F

Climate (2020–Present)

Pierre, Pierre Regional Airport (44.7 miles)

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  • Average Low 2020–2025

    36.8 °F

  • Average 2020–2025

    48.7 °F

  • Average High 2020–2025

    61.2 °F
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